Loctek Full Motion Swivel Gas Spring Dual Arm LCD Desk Monitor Mounts for 10-27'' Monitor and up to 15.6" Notebook Laptop Computer Stand Holder for Samsung/Dell/Asus/Acer/HP/AOC (D5DL) Arm easily adjust to support an ergonomically correct workstation; sit more comfortably at your desk while reducing neck, eye and back strain, extend or retract monitor arm; rotate monitor to landscape or portrait mode Durable hardware supports clamp or grommet installation Gas spring hovering system gracefully adjusts monitor height. Option 1:Clamp:For desk thickness:0.78-3.97inches(20-100mm); Option 2:Grommet: Size of the hole:1/3 inch-2.75 inch(8.5-70mm) Table thickness:0.78-3.54 inch(20-90mm) Supports monitors weighing 3.3-11 lbs. Available VESA 75X75/100X100 and fits most 10''-27'' monitor and laptop